1.Tracking oseltamivir-resistance in New Zealand influenza viruses during a medicine reclassification in 2007, a resistant-virus importation in 2008 and the 2009 pandemic
Richard J Hall ; Matthew Peacey ; Jacqui C Ralston ; Danielle J de Joux ; Judy Bocacao ; Mackenzie Nicol ; Molly Ziki ; Wendy Gunn ; Jing Wang ; Q Sue Huang
Western Pacific Surveillance and Response 2012;3(4):71-77
2.Unveiling the Complex World of Extracellular Vesicles: Novel Characterization Techniques and Manufacturing Considerations
James J. LAI ; John J. HILL ; Casey Y. HUANG ; Gino C. LEE ; Karol W. MAI ; Maggie Y. SHEN ; Simon K. WANG
Chonnam Medical Journal 2024;60(1):1-12
Extracellular vesicles (EVs) function as potent mediators of intercellular communication for many in vivo processes, contributing to both health and disease related conditions. Given their biological origins and diverse functionality from correspondingly unique “cargo” compositions, both endogenous and modified EVs are garnering attention as promising therapeutic modalities and vehicles for targeted therapeutic delivery applications. Their diversity in composition, however, has revealed a significant need for more comprehensive analytical-based characterization methods, and manufacturing processes that are consistent and scalable. In this review, we explore the dynamic landscape of EV research and development efforts, ranging from novel isolation approaches, to their analytical assessment through novel characterization techniques, and to their production by industrial-scale manufacturing process considerations. Expanding the horizon of these topics to EVs for in-human applications, we underscore the need for stringent development and adherence to Good Manufacturing Practice (GMP) guidelines. Wherein, the intricate interplay of raw materials, production in bioreactors, and isolation practices, along with analytical assessments compliant with the Minimal Information for Studies of Extracellular Vesicles (MISEV) guidelines, in conjunction with reference standard materials, collectively pave the way for standardized and consistent GMP production processes.
3.Outcomes of Arteriovenous Fistula Formation in an Octogenarian Population
Leong BDK ; Huang YY ; Vijayan V ; Mwipatayi P ; Hockley J ; Sandford M
Journal of Surgical Academia 2012;2(2):1-1
Given the ultimate lower usage rate of the AVF and higher intervention rate within 12 months of creation, AVF formation in octogenarian patients may not be appropriate. Patient selection is vital and alternative renal access should be considered especially for those patients with risk factors associated with failure.
4.Clinical analysis of foreign body ingestion of button cell in children.
Tao HUANG ; Zhinan WANG ; Enming XU ; Zhongqiang XU ; J un LI ; Kaicheng RAO ; Shufen WANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2013;27(24):1388-1390
OBJECTIVE:
To improve diagnosis and treatment level of foreign body ingestion of button cell in children.
METHOD:
Among the 14 cases with foreign bodies ingestion of button cell, 6 cases in esophageal, 7 cases in stomach and lower gastrointestinal tract, 1 case with multiple foreign bodies both in esophagus and stomach. Seven cases in stomach and lower gastrointestinal tract were closely observed without special treatment, 6 cases in esophageal, underwent esophagoscopy and removal of foreign body under general anesthesia, 1 case with multiple foreign bodies in esophagus and stomach underwent esophagoscopy and electronic gastroscopy and then removal of foreign body. All patients had symptomatic treatments after removal of foreign body. The average age is 2 years and 1 month.
RESULT:
After the removal of button cell, Foreign bodies in stomach and lower gastrointestinal tract in 7 cases were all discharged spontaneously. For the 6 cases in esophagus, 4 cases were cured, 1 case had esophageal stricture, 1 cased died. 1 case with multiple foreign bodies in both esophagus and stomach was cured.
CONCLUSION
Esophageal foreign body has strong corrosiveness and would cause serious damages even to threaten children's life. It also may lead to esophageal stricture. The key point to cure this disease is to diagnose timely and to operate as soon as possible. Because neutralize of digestive juices and low probability of incarceration, with close observation, the foreign bodies of stomach and lower gastrointestinal tract can discharge spontaneously.
Child, Preschool
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Esophagus
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Female
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Foreign Bodies
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etiology
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Humans
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Infant
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Male
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Stomach
5.Nutritional Status and the Use of Protease Inhibitors Among Hiv-infected Children in Klang Valley, Malaysia
MT Mohd. Nasir ; J Yeo ; MSL Huang ; MT Koh ; R Kamarul Azhar ; GL Khor
Malaysian Journal of Medicine and Health Sciences 2011;7(2):73-79
This study determined the association between nutritional status and the use of protease inhibitors (PI)
containing regimen among HIV-infected children receiving treatment at the referral centres in Klang
Valley. A total of 95 children currently on antiretroviral (ARV) therapy, aged one to eighteen years, were
recruited using purposive sampling. Demographic data, anthropometric measurements, medical history,
were collected using a structured questionnaire. Serum micronutrients levels and lipid profile were also
examined using blood samples. Mean age was 8.8 3.9 years and 44.2% were on PI. Age ( 2 = 10.351,
p = .006), weight-for-age ( 2 = 6.567, p = .010), serum selenium ( 2 = 4.225, p = .040) and HDL-C ( 2
= 7.539, p = .006) were significantly associated with the use of PI. Fewer children on PI were deficient
in selenium as compared to those not on PI. On the contrary, more children on PI were underweight and
had low HDL-C. The use of PI was found to have both positive and negative effects with better selenium
level but poorer HDL-C level and weight status.
6.Nutritional Status of Children Living with HIV and Receiving Antiretroviral (ARV) Medication in the Klang Valley, Malaysia
Mohd. Nasir MT ; Yeo J ; Huang MSL ; Kamarul Azahar MR ; Koh MT ; Khor GL
Malaysian Journal of Nutrition 2011;17(1):19-30
Introduction: Nutrition and HIV are closely related. Any immune impairment
as a result of HIV leads to malnutrition, which in turn, can also lead to reduced
immunity, thus contributing to a more rapid progression to AIDS. Methods:
This cross-sectional study determined the nutritional status of children living
with HIV and are receiving antiretroviral medication in the Klang Valley. A
total of 95 children aged one to eighteen years old were recruited between
September 2008 and February 2009. Data collected included socio-economic status,
anthropometric measurements, dietary intake, medical history and serum levels
of selected micronutrients specific for immunity. Results: The mean age of the
children was 8.4±3.9 years and the mean duration on antiretroviral medications
was 68.3±38.3 months. Anthropometric assessment found that 9.5% of the children
were underweight and 31.6% were overweight. In contrast, 20.8% were stunted
and 14.6% severely stunted. Biochemical indicators showed that 10.4% had
deficiency in vitamin A while 12.5% had deficiency in selenium. Total cholesterol
and HDL-C levels were found to be low in 30.5% and 10.5% of the children
respectively. Conclusion: Dietary assessment showed almost all the children
did not achieve the recommended energy intake for their age groups and almost
half of the children did not achieve the RNI for selenium and vitamin A. This
study provides an insight on the nutritional status of children living with HIV.
7.Progress in researches on the laboratory diagnosis of nongonococcal urethritis.
National Journal of Andrology 2004;10(1):3-8
Nongonococcal urethritis(NGU) is one of the common sexually transmitted diseases. Chlamydia trachomatis is the commonest pathogen of NGU. Ureaplasma urealyticum, Mycoplasma genitalium, Trichomonas vaginalis and other pathogens also account for some cases of NGU. With the development of molecular biology and immunology, more and more new techniques, such as PCR, LCR, etc., have been used in the researches on the laboratory diagnosis of NGU. It is necessary to establish and standardize some reliable rapid diagnostic tests for NGU. This paper reviews the progress in researches on the concept, etiology, clinical features, laboratory diagnosis and treatment of NGU.
Animals
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Clinical Laboratory Techniques
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Humans
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Mycoplasma Infections
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diagnosis
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drug therapy
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Trichomonas Infections
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diagnosis
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drug therapy
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Trichomonas vaginalis
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isolation & purification
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Ureaplasma Infections
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diagnosis
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drug therapy
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Ureaplasma urealyticum
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isolation & purification
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Urethritis
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diagnosis
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drug therapy
10.Detection of melatonin in the serum and seminal plasma of fertile and infertile men.
Xuejun SHANG ; Zhangqun YE ; Xiao YU ; Yufeng HUANG
National Journal of Andrology 2004;10(4):293-294
OBJECTIVETo detect the concentrations of melatonin(MLT) in the seminal plasma of fertile and infertile men.
METHODSSerum and semen were collected from 18 fertile men aged 26-36 and 99 infertile men aged 23-36, and the latter were divided into five groups: normozoospermia (13 cases), oligozoospermia (27 cases), asthenozoospermia (31 cases), oligoasthenozoospermia (17 cases) and oligoasthenoteratozoospermia (11 cases). Concentrations of MLT in the serum and seminal plasma of the subjects were detected by ELISA.
RESULTSConcentrations of MLT in the serum showed no significant difference between the fertile and infertile men, and concentrations of MLT in the seminal plasma were lower than in the serum. Concentrations of MLT in the seminal plasma of the fertile men were not significantly different from those of the infertile men. Concentrations of MLT in the seminal plasma of the oligoasthenozoospermic and oligoasthenoteratozoospermic men were relatively lower than the fertile men, but the difference was not statistically significant (P > 0.05).
CONCLUSIONSMLT of seminal plasma may have certain effect on sperm function, but it is necessary to further study and clarify its mechanism.
Adult ; Humans ; Infertility, Male ; metabolism ; Male ; Melatonin ; analysis ; blood ; Semen ; chemistry