hearing loss Archives - Amazing Health Advances

Study Highlights Noninvasive Hearing Aid

The AHA! Team — Mon, 28 Jul 2025 05:14:54 +0000

Atrium Health Wake Forest Baptist via EurekAlert! – New type of hearing aid using an array of micro-epidermal actuators can significantly improve the hearing experience for patients with conductive hearing loss A study from researchers at Wake Forest University School of Medicine highlights a new approach in addressing conductive hearing loss. A team of scientists, led by Mohammad J. Moghimi, Ph.D., assistant professor of biomedical engineering, designed a new type of hearing aid that not only improves hearing but also offers a safe, non-invasive alternative to implantable devices and corrective surgeries. The study recently published in Communications Engineering, a Nature Portfolio journal. Conductive hearing loss, which most commonly happens in childhood, occurs when sounds do not reach the inner ear. Sound waves are blocked in the outer or middle ear due to ear infections, blockages or structural abnormalities. “Treatment for conductive hearing loss can include corrective surgeries and implantable hearing aids, which can be very invasive, especially for pediatric patients,” Moghimi said. “Flexible hearing aids offer a noninvasive alternative.” To produce vibrations strong enough to reach the cochlea, the part of the inner ear responsible for hearing, the research team designed a flexible hearing aid. The device uses micro-epidermal actuators to create vibrations on the skin behind the ear, which then travel directly to the inner ear, bypassing the ear canal. For the study, 10 participants between the ages of 19 and 39 wore earplugs and earmuffs to simulate conductive hearing loss. Researchers then tested arrays of the actuators to enhance the vibration strength, improve the quality of sounds and control the direction of the vibrations. “We found that using an array of these actuators, rather than a single one, significantly enhances the strength and quality of the vibrations, leading to better hearing outcomes,” Moghimi said. Moghimi also noted that improving hearing in children can reduce delays in language and speech development and boost educational development. “This technology has the potential to improve the quality of life for children with hearing impairments and transform the way we approach pediatric hearing aids,” Moghimi said. The research team will next focus on a larger study to further evaluate the efficacy and safety of the device in children and adults. Journal Communications Engineering DOI 10.1038/s44172-025-00369-7 To read the original article click here.

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What Parents Should Know About Newborn Hearing Screenings

The AHA! Team — Wed, 11 Jun 2025 05:09:29 +0000

Children’s Hospital Los Angeles via Newswise – Early detection of hearing loss in children is imperative. Learn what the result of your kid’s hearing test means—and what you need to do about it next. In the United States, approximately 3 out of every 1,000 infants are born with hearing loss. Surprisingly, over 90% of these children are born to parents who themselves have normal hearing. As mandated by state regulations, newborn hearing screenings are performed in all hospitals where babies are delivered. These screenings are essential for early detection, which Kristina Rousso, AuD, an audiologist with the California Leadership Education in Neurodevelopmental and Related Disabilities (CA-LEND) training program at Children’s Hospital Los Angeles, says is crucial for achieving optimal outcomes in a child’s development. Babies’ brains “From birth, babies’ brains are constantly taking in information to support development of listening, language, and reading,” Dr. Rousso says. Dr. Rousso says that she and her colleagues follow the Joint Committee on Infant Hearing Guidelines 1:3:6 model—identification through screening by 1 month of age; diagnosis of hearing level and type with a pediatric audiologist by 3 months of age; and treatment with hearing devices by 6 months of age. What can cause hearing loss at birth? Below are some of the reasons that a baby may be born with hearing loss: Genetic factors Maternal viruses during pregnancy, such as cytomegalovirus (CMV) and rubella Extended stays in neonatal intensive care, due to risk factors such as low birth weight, lack of oxygen, and phototherapy treatment Two types of newborn hearing screenings There are two primary types of newborn hearing screenings: otoacoustic emissions (OAE) and auditory brainstem response (ABR). “Both are painless, fast, and easy to measure,” Dr. Rousso says. Otoacoustic emissions involves playing different sounds into the baby’s ear to detect a response from the inner ear Auditory brainstem response measures the brain’s response to sounds and volume levels through electrodes placed on the baby’s head during sleep. Hearing screenings provide a “pass” or “refer” result. Here is what each means. Pass: A “pass” indicates your baby likely has normal to near-normal hearing. “However,” Dr. Rousso says, “it’s still important to monitor speech and language development and the baby’s responses to different sounds in the environment.” If your baby does not respond to sounds appropriately at home, or their speech and language development is not advancing, schedule a hearing test appointment with a pediatric audiologist, who can evaluate and treat your child for possible hearing loss. Refer: A ”refer” result means that more information is needed to determine if the baby has hearing loss in one or both ears. A second hearing test will be administered before you and your baby are discharged. If the baby does not pass the second time, you will be referred to a pediatric audiologist for a comprehensive diagnostic evaluation. Dr. Rousso emphasizes the importance of promptly taking your baby to a pediatric audiologist for a complete evaluation if the baby does not pass the hearing screen, or if the baby is not developing speech or language. The sooner hearing loss is diagnosed and treated, the faster a baby’s brain can start to develop speech and language. To read the original article click here.

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New Active Substance Shows Promise in Treating Acute Sudden Hearing Loss

The AHA! Team — Wed, 11 Dec 2024 19:33:18 +0000

Medical University of Vienna via News-Medical – A research team led by MedUni Vienna has investigated AC102, a new active substance that offers hope of an effective treatment for acute sudden hearing loss. The latest results have been published in the scientific journal “Cell Death & Disease”. Initial findings from preclinical trials could represent a significant advancement in the treatment of acute hearing disorders. The effectiveness of AC102 was demonstrated in a study led by Christoph Arnoldner (Department of Otorhinolaryngology at MedUni Vienna) and Hans Rommelspacher (Audio Cure Pharma GmbH, Berlin) using animal models with cochlear implants. Cochlear implantation is currently the only treatment option for advanced hearing loss in order to partially restore the hearing ability. The preservation of residual hearing is of crucial importance, as the remaining “natural” hearing in combination with the electrical stimulation of the implant improves speech comprehension and general hearing perception. However, the surgical procedure can damage the inner ear and lead to the loss of residual hearing. Until now, there has been no effective method to prevent or treat this loss. “In our study, we have now been able to show that the residual hearing of animals that were administered AC102 once increasingly recovered in contrast to untreated animals,” reports first author Michael Nieratschker (Department of Otorhinolaryngology at MedUni Vienna). With the help of cell cultures and inner ear models, the study also found an explanation for this effect: AC102 has an anti-inflammatory effect and thus protects the hair cells and auditory nerves from dying. Treatment of sudden hearing loss in sight The results of the study allow the conclusion that AC102 could also be effective in acute sudden hearing loss. “Sudden hearing loss is usually treated with cortisone, but recent studies show that this approach often does not work.” -Christoph Arnoldner, Head of the CD Laboratory for Inner Ear Research at MedUni Vienna “Since inflammatory processes and cell damage also play a role in acute sudden hearing loss, as in the case of residual hearing loss in cochlear implantation, the use of AC102 was also investigated in this context,” explains Michael Nieratschker. The efficacy of the substance has already been demonstrated in a preclinical study (https://www.pnas.org/doi/10.1073/pnas.2314763121) involving MedUni Vienna. A Phase I study to confirm the safe use of AC102 at MedUni Vienna and Radboud University in Nijmegen (Netherlands) has also already been successfully completed. The Phase II study to confirm efficacy in patients is being conducted at several European centers, including MedUni Vienna’s Department of Otorhinolaryngology. “All the results so far give us reason to hope that AC102 could be suitable for the treatment of acute sudden hearing loss,” say Christoph Arnoldner and Michael Nieratschker optimistically. Source: Medical University of Vienna Journal reference: Nieratschker, M., et al. (2024). A preoperative dose of the pyridoindole AC102 improves the recovery of residual hearing in a gerbil animal model of cochlear implantation. Cell Death and Disease. doi.org/10.1038/s41419-024-06854-9. To read the original article click here.

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What is Safe Listening?

AHA Publisher — Mon, 07 Mar 2022 08:00:16 +0000

Dr. Priyom Bose, Ph.D. via News-Medical – Scientists have revealed that noise-induced hearing loss is irreversible. This is because exposure to loud sounds for a substantial period causes fatigue of the ear’s sensory cells. When an individual is exposed to loud noise for a brief period, many times, they experience temporary hearing loss or a ringing sensation in the ear, which is referred to as tinnitus. The hearing improves as the sensory cells recover. Safe listening ensures sound-related entertaining activities without harming one’s hearing. Can Loud Sound Cause a Loss of Hearing Ability? When a person is subjected to loud music, such as in a concert, they often experience tinnitus and this condition improves as the sensory cells recover. However, in other instances when a person is exposed to a loud, persistent, regular, or prolonged noise, it causes severe damage to sensory cells and other structures. These damages could cause permanent hearing loss. The impact of a high-frequency range, i.e., a high-pitched sound, might not be realized immediately. Scientists observed that continued exposure to this frequency of sound could lead to a steady progression of hearing loss, which may ultimately affect speech comprehension. Hearing loss affects the overall quality of life of an individual. Studies have shown that some people are at a greater risk of suffering noise-induced hearing loss than others. Some conditions that increase the possibility of acquiring noise-induced hearing loss include genetic predisposition, cigarette smoke, and chronic conditions (e.g., diabetes). Hearing loss impacts an individual’s social and educational growth. It also affects their ability to work. Some of the common outcomes of hearing loss are learning disabilities, attention-seeking behaviors, psychological stress, and anxiety. In younger children, noise-induced hearing loss hinders their language acquisition ability. Scientists have also revealed that exposure to chronic noise in classrooms inhibits academic performance related to reading ability, short- and long-term memory, and comprehension. Inadequate hearing protection during certain activities, such as shooting firearms or listening to loud music during adolescence, increases the possibility of communication difficulty in the later years of life. What is Safe Listening? Safe listening predominantly depends on three factors, i.e., intensity, duration, and frequency of one’s exposure to loud noise. These three factors constitute the overall levels of sound energy that an individual’s ears are subjected to. Scientists have revealed that the total amount of sound energy a person can safely receive is constant. Hence, the same amount of energy can be introduced to a person at a lower intensity, i.e., decreased volume, for a prolonged period, whereas, louder sounds can only be perceived for a short duration. Permissible Levels of Daily Exposure to Noise The permissible level of daily noise exposure has been determined based on the total permissible ‘dose’ of sound. Researchers have suggested eighty-five decibels (dB) to be the highest safe exposure level up to a maximum of eight hours. Typically, the permissible exposure level of sound is calculated for occupational settings and recreational settings. The permissible duration of safe listening decreases as the volume of sound increases. For instance, if the sound is 100 dB, which is as much sound generated by a subway train, a person can be exposed to this noise safely for only fifteen minutes each day. Very few people are aware of or practice safe listening. Typically, users of personal audio devices set the volume between 75 and 105 dB. At discotheques and nightclubs, the average sound levels range between104 to 112 dB, and noise levels at a pop concert can rise even higher. Noise levels generated at sporting venues, such as football and cricket grounds, ranging from 80 dB to 117 dB. Even a brief duration of exposure to a high-decibel level of sound can be harmful. How to Prevent Noise-induced Hearing Loss? Several methods can be implemented to prevent noise-induced hearing loss, which is discussed below: (a) Lowering the volume: Studies have shown that even a small reduction in volume offers significant protection. The use of earplugs in places with high volume settings, such as nightclubs and discotheques, or reducing the volume while listening to personal audio devices could be beneficial. Several studies have shown that well-inserted earplugs can reduce exposure by 5 to 45 dB. The use of noise cancellation earphones and headphones is designed in such a way that music can be heard clearly at a lower volume. Additionally, as it eliminates the background noise, the user will be more inclined to reduce the volume. (b) Restricting time spent in a noisy environment: The duration of being exposed to loud noise could be minimized by taking short listening breaks. In a noisy venue, people should keep far away from the source of the sound (e.g., loudspeakers). Additionally, limiting the daily use of personal audio devices to less than one hour per day could reduce the level of exposure, substantially. (c) Monitoring safe listening levels: People must be better informed regarding the benefits of safe listening. Smartphone technology could be effectively used to monitor the exposure levels and inform users regarding the risk of developing noise-induced hearing loss. A user-friendly application could be developed which could monitor the intensity levels in decibels and indicate if the level is risky. (d) Paying heed to the signs of hearing loss: When an individual suspects hearing loss, for instance, having difficulty in hearing alarm clocks, doorbells, or telephones, one should seek medical help immediately. Sources: Make Listening Safe. (2022) [Online] Available at: www.who.int/…/MLS_Brochure_English_lowres_for_web.pdf Healthy headphone use: How loud and how long? (2020) [Online] Available at: https://www.health.harvard.edu/blog/healthy-headphone-use-how-loud-and-how-long-2020072220565 Safe listening devices and systems: a WHO-ITU global standard. (2019) Geneva: World Health Organization and International Telecommunication. [Online] Available at: www.itu.int/…/Safe_listening_standard.pdf Innovation in Augmented Listening Technology. (2019) [Online] Available at: https://publish.illinois.edu/augmentedlistening/how-loud-is-my-audio-device-thinking-about-safe-listening-through-the-new-who-itu-standard/ Gallagher, J, (2015) Cut music to ‘an hour a day’ – WHO. [Online] Available at: https://www.bbc.co.uk/news/health-31661789 To read the original article click here.

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Cochlear Implant in Deaf Children with Autism Can Improve Language Skills and Social Engagement

AHA Publisher — Wed, 29 Dec 2021 08:00:14 +0000

Ann and Robert H. Lurie Children’s Hospital of Chicago via Newswise – Restoring hearing through cochlear implantation for children with autism spectrum disorder (ASD) can help them understand spoken language and enhance social interactions, according to a study from Ann & Robert H. Lurie Children’s Hospital of Chicago. The study reported long-term outcomes of the largest number of children with ASD who received a cochlear implant, with mean follow-up of 10.5 years. Findings were published in the journal Otology & Neurotology. “Our results add to the growing body of evidence that cochlear implantation clearly benefits deaf children with autism spectrum disorder,” said senior author Nancy Young, MD, Medical Director of Audiology and Cochlear Implant Programs at Lurie Children’s and a Professor of Pediatric Otolaryngology at Northwestern University Feinberg School of Medicine. “Improved hearing provides access to spoken language that may enhance their cognitive and communication potential, as well as help these children engage more with their families.” The majority (73 percent) of children in the study consistently used their cochlear implant throughout the day, of whom 45 percent developed some understanding of spoken words with hearing alone (no visual cues). Forty five percent also used spoken language to some degree as part of their overall communication. Eighty six percent were reported by parents to have improved social engagement after implantation. Responding to a survey, one parent reported: “Without his implant, he was stuck in his own little world, no sound, no eye contact with others. The implant brought his personality out to us.” According to recent estimates, one in 88 children in the US have ASD, a complex developmental disorder characterized by impaired communication and social interaction. Twenty-five to 30 percent of normal hearing children with ASD do not develop spoken language as a means of communication. Therefore, children with ASD in combination with profound hearing loss have two conditions that may limit development of spoken language. Not surprisingly, the children in this study usually developed understanding and use of spoken language more slowly than implanted children without ASD. Children with ASD have been reported to have a higher prevalence of sensorineural hearing loss (SNHL) than children without ASD. Conversely, children with SNHL have been reported to have a higher rate of ASD than those with normal hearing. Dr. Young noted that “the relationship between these two diagnoses for some of these children may be due to congenital cytomegalovirus (CMV), an infection that begins in the developing fetus that often is unrecognized after birth. It may cause hearing loss and is associated with increased incidence of ASD.” Most children in the study were diagnosed with ASD after cochlear implantation. Diagnosis after implantation is likely related to the young age at which most received their implant, and to increased difficulty diagnosing ASD when significant hearing loss is present. “Understanding the range of outcomes in this population is important for counseling parents and educators to ensure that these children receive appropriate support and services,” said Beth Tournis, AuD, an audiologist at Lurie Children’s and co-author of the study. To read the original article click here.

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Translating Basic Hearing Loss Research into Practical Therapies for Those in Need

AHA Publisher — Fri, 12 Mar 2021 08:00:39 +0000

Creighton University via Newswise – OMAHA, Neb (March 5, 2021) – A research center at Creighton University, dedicated to preserving or restoring hearing loss, has been awarded the largest National Institutes of Health grant in the University’s history. Creighton’s Translational Hearing Center, which was established in 2019, has been awarded $10.8 million payable over five years and competitively renewable up to 15 years, by the NIH-affiliated Centers of Biomedical Research Excellence (COBRE). The award will fund a working partnership between the Translational Hearing Center, Boys Town National Research Center and the University of Nebraska Medical Center as the three institutions seek to translate basic hearing loss research into practical therapies. Led by Peter Steyger, PhD, professor of biomedical sciences at Creighton and director of the Translational Hearing Center, and Jian Zuo, PhD, chair of the Department of Biomedical Sciences at Creighton, the partnership will build a corps of academic researchers dedicated to battling hearing loss resulting from numerous causes. Researchers will tackle hearing loss in children whose hearing is compromised by antibiotics or other medical treatments, to persons suffering hearing loss in the wake of cancer therapies, those who suffer deafness due to such infections as meningitis, through to natural hearing loss caused by aging. Bo Dunlay, MD, dean of the Creighton University College of Medicine, said the grant will boost the Center’s already high reputation. “The Creighton University Translational Hearing Center is internationally recognized for groundbreaking research that has a simple goal: to improve the lives of countless individuals who are facing hearing loss,” he said. “The COBRE is an important step on this journey.” In its grant application, the Transitional Hearing Center said it will work to improve hearing loss by speeding the transition of research to clinical trials and from there to practical therapies. “Hearing loss in infants and children results in delayed acquisition of listening and spoken language skills critical for academic achievement and impairs career trajectories of affected individuals,” said Peter Steyger, PhD, the application’s principal investigator. “In the aging population, hearing loss without appropriate rehabilitation accelerates aging and cognitive decline.” “This award solidifies our leading position in the nation on drug development for hearing loss.” said Jian Zuo, who is also director of the Drug Discovery Core of the COBRE grant. From this platform, we will launch additional programs to continue excellence in our translational research on hearing loss.” The COBRE grant will enable creation of a unique research environment within the Transitional Hearing Center consisting of junior investigators conducting basic research. An “administrative core” of experienced professionals will coordinate projects with an external advisory committee, all with the goal of developing new therapies and methods of assessing their effectiveness. Researchers will examine peripheral hearing loss as well as compromised relationships between the inner ear and the brain in an effort to identify pharmacotherapeutic strategies. Future plans call for expansion into investigational new drug applications, safety and efficacy studies and clinical trials in patient populations served by Creighton University’s academic medical center, Catholic Health Initiatives (CHI) Health Systems, and with Boys Town National Research Center and the University of Nebraska Medical Center. The success of this COBRE grant application is the result of extensive collaboration among many individuals who dedicated significant amount of time and effort in multiple departments and across multiple schools at Creighton University. These included the School of Medicine, the School of Pharmacy and Health Professions and the School of Dentistry. In addition, the Creighton School of Medicine made a significant commitment to ensure the success of the Center. The Creighton University Translational Hearing Center was created in 2019 on the foundation of a grant from the Bellucci DePaoli Family Foundation, which honors the memory of Richard Bellucci, MD’42. After graduating from Creighton and returning to his native New York City, Bellucci made some of the 20th century’s most important contributions in the fields of otology and otolaryngology. The center is directed by Steyger, a native of Manchester, England, who as a 14-month-old boy lost his hearing to meningitis and has since dedicated his career to preventing a similar fate from befalling other children. To read the original article click here.

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Hear This: Healthful Diet Tied to Lower Risk of Hearing Loss

AHA Publisher — Sat, 30 Nov 2019 08:00:23 +0000

Brigham and Women’s Hospital via Newswise – “The benefits of adherence to healthful dietary patterns have been associated with numerous positive health outcomes and eating a healthy diet may also help reduce the risk of hearing loss.” Newswise — Boston, MA — Investigators from Brigham and Women’s Hospital have found that eating a healthy diet may reduce the risk of acquired hearing loss. Using longitudinal data collected in the Nurses’ Health Study II Conservation of Hearing Study (CHEARS), researchers examined three-year changes in hearing sensitivities and found that women whose eating patterns more closely adhered to commonly recommended healthful dietary patterns, such as the Dietary Approaches to Stop Hypertension (DASH) diet, the Alternate Mediterranean (AMED) diet, and the Alternate Healthy Index-2010 (AHEI-2010), had substantially lower risk of decline in hearing sensitivity. The team’s findings are published in the American Journal of Epidemiology “A common perception is that hearing loss is an inevitable part of the aging process. However, our research focuses on identifying potentially modifiable risk factors — that is, things that we can change in our diet and lifestyle to prevent hearing loss or delay its progression,” said lead author Sharon Curhan, MD, a physician and epidemiologist in the Brigham’s Channing Division of Network Medicine. “The benefits of adherence to healthful dietary patterns have been associated with numerous positive health outcomes and eating a healthy diet may also help reduce the risk of hearing loss.” Previous studies have suggested that higher intake of specific nutrients and certain foods, such as the carotenoids beta-carotene and beta-cryptoxanthin (found in squash, carrots, oranges and other fruits and vegetables), folate (found in legumes, leafy greens, and other foods), long-chain omega-3 fatty acids (found in seafood and fish), were associated with lower risk of self-reported hearing loss. These findings revealed that dietary intake could influence the risk of developing hearing loss, but investigators sought to further understand the connection between diet and hearing loss by capturing overall dietary patterns and objectively measuring longitudinal changes in hearing sensitivities. To do so, the researchers established 19 geographically diverse testing sites across the U.S. and trained teams of licensed audiologists to follow standardized CHEARS methods. The audiologists measured changes in pure-tone hearing thresholds, the lowest volume that a pitch can be detected by the participant in a given ear, over the course of 3 years. An audiologist presented tones of different frequencies (0.5, 1 and 2 kHz as low-frequencies; at 3 kHz and 4 kHz as mid-frequencies; and at 6 kHz and 8 kHz as higher frequencies) at variable “loudness” levels and participants were asked to indicate when they could just barely hear the tone. Using over 20 years of dietary intake information that was collected every four years beginning in 1991, the researchers investigated how closely participants’ long-term diets resembled some well-established and currently recommended dietary patterns, such as the DASH diet, the Mediterranean diet, and Alternate Healthy Index-2010 (AHEI-2010). Greater adherence to these dietary patterns has been associated with a number of important health outcomes, including lower risk of heart disease, hypertension, diabetes, stroke and death as well as healthy aging. The team found that the odds of a decline in mid-frequency hearing sensitivities were almost 30 percent lower among those whose diets most closely resembled these healthful dietary patterns, compared with women whose diets least resembled the healthful dietary patterns. In the higher frequencies, the odds were up to 25 percent lower. “The association between diet and hearing sensitivity decline encompassed frequencies that are critical for speech understanding,” said Curhan. “We were surprised that so many women demonstrated hearing decline over such a relatively short period of time. The mean age of the women in our study was 59 years; most of our participants were in their 50s and early 60s. This is a younger age than when many people think about having their hearing checked. After only three years, 19 percent had hearing loss in the low frequencies, 38 percent had hearing loss in the mid-frequencies, and almost half had hearing loss in the higher frequencies. Despite this considerable worsening in their hearing sensitivities, hearing loss among many of these participants would not typically be detected or addressed.” The study included female health care professionals, which enhanced the validity of the health information collected and reduced the variability in educational achievement and socioeconomic status, but the study population was limited to predominantly middle-aged, non-Hispanic white women. The authors note that further research in additional populations is warranted. The team hopes to continue to longitudinally follow the participants in this study with repeated hearing tests over time and is investigating ways to collect research-quality information on tens of thousands of participants for future studies across diverse populations. To read the original article click here.

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Good Noise, Bad Noise: White Noise Improves Hearing

AHA Publisher — Wed, 27 Nov 2019 08:00:17 +0000

University of Basel via Science Daily – White noise is not the same as other noise — and even a quiet environment does not have the same effect as white noise. With a background of continuous white noise, hearing pure sounds becomes even more precise, as researchers have shown. Their findings could be applied to the further development of cochlear implants. To read the original article click here.

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