The Distribution of Dermatologists in the Philippines.

BACKGROUND: Equitable health manpower distribution is essential for the successful implementation of the Universal Health Care (UHC) program by the Philippine Department of Health. Mapping the distribution and profile of dermatologists in the Philippines can improve Filipinos' access to skin disease treatment. METHODS: A review of the database of dermatologists from the Philippine Dermatological Society (PDS) members' directory (as of November 2023), as well as the Philippine Health Insurance Corporation (PhilHealth) database (as of July 2023), was conducted. The distribution of PDS-accredited dermatologists was analyzed by geographic location, demographic profile (age and sex), density (per 100,000 people), and the dermatologist-to-general practitioner (GP) ratio. Heatmaps illustrating the distribution of dermatologists in the Philippines and the ratio of PhilHealth-accredited PDS board-certified dermatologists to GPs were created. RESULTS: Out of 1389 PDS board-certified dermatologists, 1345 resided in the Philippines. The majority were women (1221/1345, 90.78%), with a median age of 47 years (range: 23 to 85). More than half were practicing in the National Capital Region (NCR) (684/1345, 50.86%). The overall dermatologist density was approximately 1 per 100,000 people (1.19); it was highest for the Luzon Island group (1.54) (NCR, 4.80) and lowest for the Mindanao Island group (0.27; the Bangsamoro Autonomous Region of Muslim Mindanao or BARMM, 0.04). Less than one-third (396/1345, 29.44%) of dermatologists were PhilHealth-accredited, with a density of 0.35 dermatologists per 100,000 people. Out of 45218 PhilHealth-accredited physicians, 396 (0.88%) were dermatologists while 11748 (25.98%) were GPs. The overall dermatologist-to-GP ratio among PhilHealth-accredited physicians was 1:30; it was highest in the Luzon Island group (1:20) and lowest in the Mindanao Island group (1:118). CONCLUSION: The Philippines lacks dermatologists in regions outside the NCR. The majority are women, and few are PhilHealth-accredited. The dermatologist-to-GP ratio among PhilHealth-accredited physicians is low. Dermatology training programs should encourage more applicants, especially men, and prioritize applicants from underserved regions.

Chromosome 20p11.2 deletions cause congenital hyperinsulinism via the loss of FOXA2 or its regulatory elements.

Persistent congenital hyperinsulinism (HI) is a rare genetically heterogeneous condition characterised by dysregulated insulin secretion leading to life-threatening hypoglycaemia. For up to 50% of affected individuals screening of the known HI genes does not identify a disease-causing variant. Large deletions have previously been used to identify novel regulatory regions causing HI. Here, we used genome sequencing to search for novel large (>1 Mb) deletions in 180 probands with HI of unknown cause and replicated our findings in a large cohort of 883 genetically unsolved individuals with HI using off-target copy number variant calling from targeted gene panels. We identified overlapping heterozygous deletions in five individuals (range 3-8 Mb) spanning chromosome 20p11.2. The pancreatic beta-cell transcription factor gene, FOXA2, a known cause of HI was deleted in two of the five individuals. In the remaining three, we found a minimal deleted region of 2.4 Mb adjacent to FOXA2 that encompasses multiple non-coding regulatory elements that are in conformational contact with FOXA2. Our data suggests that the deletions in these three children may cause disease through the dysregulation of FOXA2 expression. These findings provide new insights into the regulation of FOXA2 in the beta-cell and confirm an aetiological role for chromosome 20p11.2 deletions in syndromic HI.

Neuroimaging Modalities Used for Ischemic Stroke Diagnosis and Monitoring.

Strokes are one of the global leading causes of physical or mental impairment and fatality, classified into hemorrhagic and ischemic strokes. Ischemic strokes happen when a thrombus blocks or plugs an artery and interrupts or reduces blood supply to the brain tissue. Deciding on the imaging modality which will be used for stroke detection depends on the expertise and availability of staff and the infrastructure of hospitals. Magnetic resonance imaging provides valuable information, and its sensitivity for smaller infarcts is greater, while computed tomography is more extensively used, since it can promptly exclude acute cerebral hemorrhages and is more favorable speed-wise. The aim of this article was to give information about the neuroimaging modalities used for the diagnosis and monitoring of ischemic strokes. We reviewed the available literature and presented the use of computed tomography, CT angiography, CT perfusion, magnetic resonance imaging, MR angiography and MR perfusion for the detection of ischemic strokes and their monitoring in different phases of stroke development.

Brixia Chest X-ray Score, Laboratory Parameters and Vaccination Status for Prediction of Mortality in COVID-19 Hospitalized Patients.

Chest X-ray has verified its role as a crucial tool in COVID-19 assessment due to its practicability, especially in emergency units, and Brixia score has proven as a useful tool for COVID-19 pneumonia grading. The aim of our study was to investigate correlations between main laboratory parameters, vaccination status, and Brixia score, as well as to confirm if Brixia score is a significant independent predictor of unfavorable outcome (death) in COVID-19 patients. The study was designed as a cross-sectional multicentric study. It included patients with a diagnosed COVID-19 infection who were hospitalized. This study included a total of 279 patients with a median age of 62 years. The only significant predictor of unfavorable outcome (death) was Brixia score (adjusted odds ratio 1.148, p = 0.022). In addition, the results of the multiple linear regression analysis (R2 = 0.334, F = 19.424, p < 0.001) have shown that male gender (B = 0.903, p = 0.046), severe COVID-19 (B = 1.970, p < 0.001), and lactate dehydrogenase (B = 0.002, p < 0.001) were significant positive predictors, while albumin level (B = -0.211, p < 0.001) was a significant negative predictor of Brixia score. Our results provide important information about factors influencing Brixia score and its usefulness in predicting the unfavorable outcome (death) of COVID-19 patients. These findings have clinical relevance, especially in epidemic circumstances.

A Retrospective Analysis of the Effects of Time on Compliance and Driving Pressures in ARDS.

BACKGROUND: The evolution of compliance and driving pressure in ARDS and the effects of time spent on noninvasive respiratory support prior to intubation have not been well studied. We conducted this study to assess the effect of the duration of noninvasive respiratory support prior to intubation (ie, noninvasive ventilation [NIV], high-flow nasal cannula [HFNC], or a combination of NIV and HFNC) on static compliance and driving pressure and retrospectively describe its trajectory over time for COVID-19 and non-COVID-19 ARDS while on mechanical ventilation. METHODS: This is a retrospective analysis of prospectively collected data from one university-affiliated academic medical center, one rural magnet hospital, and 3 suburban community facilities. A total of 589 subjects were included: 55 COVID-19 positive, 137 culture positive, and 397 culture-negative subjects. Static compliance and driving pressure were calculated at each 8-h subject-ventilator assessment. RESULTS: Days of pre-intubation noninvasive respiratory support were associated with worse compliance and driving pressure but did not moderate any trajectory. COVID-19-positive subjects showed non-statistically significant worsening compliance by 0.08 units per subject-ventilator assessment (P = .24), whereas COVID-19-negative subjects who were either culture positive or negative showed statistically significant improvement (0.12 and 0.18, respectively; both P < .05); a statistically similar but inverse pattern was observed for driving pressure. CONCLUSIONS: In contrast to non-COVID-19 ARDS, COVID-19 ARDS was associated with a more ominous trajectory with no improvement in static compliance or driving pressures. Though there was no association between days of pre-intubation noninvasive respiratory support and mortality, its use was associated with worse overall compliance and driving pressure.

Hyperinsulinemic Hypoglycemia Diagnosed in Childhood Can Be Monogenic.

CONTEXT: Congenital hyperinsulinism (HI) is characterized by inappropriate insulin secretion despite low blood glucose. Persistent HI is often monogenic, with the majority of cases diagnosed in infancy. Less is known about the contribution of monogenic forms of disease in those presenting in childhood. OBJECTIVE: We investigated the likelihood of finding a genetic cause in childhood-onset HI and explored potential factors leading to later age at presentation of disease. METHODS: We screened known disease-causing genes in 1848 individuals with HI, referred for genetic testing as part of routine clinical care. Individuals were classified as infancy-onset (diagnosed with HI < 12 months of age) or childhood-onset (diagnosed at age 1-16 years). We assessed clinical characteristics and the genotypes of individuals with monogenic HI diagnosed in childhood to gain insights into the later age at diagnosis of HI in these children. RESULTS: We identified the monogenic cause in 24% (n = 42/173) of the childhood-onset HI cohort; this was significantly lower than the proportion of genetic diagnoses in infancy-onset cases (74.5% [n = 1248/1675], P < 0.00001). Most (75%) individuals with genetically confirmed childhood-onset HI were diagnosed before 2.7 years, suggesting these cases represent the tail end of the normal distribution in age at diagnosis. This is supported by the finding that 81% of the variants identified in the childhood-onset cohort were detected in those diagnosed in infancy. CONCLUSION: We have shown that monogenic HI is an important cause of hyperinsulinism presenting outside of infancy. Genetic testing should be considered in children with persistent hyperinsulinism, regardless of age at diagnosis.

Hypertrophic Lichen Planus in a 38-year-old Filipino male: A case report

@#Hypertrophic lichen planus (HLP) is a papulosquamous eruption presenting with extremely pruritic hyperkeratotic flat-topped papules, plaques, and nodules. This is a case of 38-year-old male who presented with a 2-month history of generalized erythematous-to-hyperpigmented papules, patches, and plaques topped with white-to-gray oyster shell-like scales on a background of hyperpigmented macules and patches. There was no involvement of the conjunctival, otic, oral, and genital mucosae, and palmar and plantar aspects of the hands and feet. Dermoscopy showed reticular pearly white structures corresponding to the Wickham striae, comedo-like openings, blue-gray dots, brownish-black dots, and scales. Histopathologic examination revealed marked compact hyperkeratosis, wedge-shaped hypergranulosis, irregular saw-toothed epidermal acanthosis, scattered dyskeratotic keratinocytes, and superficial perivascular lichenoid infiltrate of lymphocytes, histiocytes, and melanophages. The patient was managed as a case of HLP. He was started on methotrexate 10 mg per week, bath psoralen photochemotherapy (PUVA) three times a week, betamethasone valerate 1mg/g cream twice a day for 2 weeks alternating with tacrolimus 0.1% ointment twice a day for another 2 weeks, 10% lactic acid, emollients, and sunscreen. After 6 months of treatment, there was almost 80% improvement of lesions and relief of pruritus.

Knowledge, attitudes, and practices on teledermatology among dermatologists in the Philippines

Background@#Teledermatology has been widely used during the coronavirus disease 2019 (COVID-19) pandemic to overcome barriers in access to care. The objective of this study was to assess the current knowledge, attitudes, and practices regarding teledermatology among dermatologists in the Philippines.@*Materials and Methods@#This was a cross-sectional and analytical study conducted from January 2022 to April 2022, among Filipino dermatologists using a self-administered online questionnaire. Descriptive statistics was used to summarize the demographics of the participants. The two-sample t-test, Chi-square test, and multiple logistic regression model were used to analyze the data.@*Results@#Out of 113 respondents, 108 (95.5%) had adequate knowledge and a positive attitude toward teledermatology. The majority (110/113, 97.35%) practiced teledermatology. The most commonly used platform was instant messaging applications(78/100, 70.91%), and the most common factor that influenced their practice was patient demands or needs(74/110, 67.27%). Those who did not practice teledermatology cited technological difficulties as the main reason.@*Conclusion@#Teledermatology was widely used by Filipino dermatologists to provide remote care during the COVID-19 pandemic. However, to fully utilize its potential and limit potential issues associated with its use even after the pandemic, continuous training and education among dermatologists and a more enabling technological environment may be needed.

A literature review and clinical consensus guidelines on the management of Bullous Pemphigoid

@#Bullous pemphigoid (BP) is the most common autoimmune blistering disease primarily characterized by tense blisters and occasionally with urticarial plaques, affecting the skin and mucous membranes. These are caused by autoantibodies against BP180 and BP230 which target antigens on the basement membrane zone. The diagnosis relies on the integration of clinical, histopathological, immunopathological, and serological findings. The management depends on the clinical extent and severity. We present in this article a literature review and the clinical consensus guidelines of the Immunodermatology Subspecialty Core Group of the Philippine Dermatological Society in the management of BP.

Non-coding variants disrupting a tissue-specific regulatory element in HK1 cause congenital hyperinsulinism.

Gene expression is tightly regulated, with many genes exhibiting cell-specific silencing when their protein product would disrupt normal cellular function1. This silencing is largely controlled by non-coding elements, and their disruption might cause human disease2. We performed gene-agnostic screening of the non-coding regions to discover new molecular causes of congenital hyperinsulinism. This identified 14 non-coding de novo variants affecting a 42-bp conserved region encompassed by a regulatory element in intron 2 of the hexokinase 1 gene (HK1). HK1 is widely expressed across all tissues except in the liver and pancreatic beta cells and is thus termed a 'disallowed gene' in these specific tissues. We demonstrated that the variants result in a loss of repression of HK1 in pancreatic beta cells, thereby causing insulin secretion and congenital hyperinsulinism. Using epigenomic data accessed from public repositories, we demonstrated that these variants reside within a regulatory region that we determine to be critical for cell-specific silencing. Importantly, this has revealed a disease mechanism for non-coding variants that cause inappropriate expression of a disallowed gene.

Transformation of Biopharmaceutical Manufacturing Through Single-Use Technologies: Current State, Remaining Challenges, and Future Development.

Single-use technologies have transformed conventional biopharmaceutical manufacturing, and their adoption is increasing rapidly for emerging applications like antibody-drug conjugates and cell and gene therapy products. These disruptive technologies have also had a significant impact during the coronavirus disease 2019 pandemic, helping to advance process development to enable the manufacturing of new monoclonal antibody therapies and vaccines. Single-use systems provide closed plug-and-play solutions and enable process intensification and continuous processing. Several challenges remain, providing opportunities to advance single-use sensors and their integration with single-use systems, to develop novel plastic materials, and to standardize design for interchangeability. Because the industry is changing rapidly, a holistic analysis of the current single-use technologies is required, with a summary of the latest advancements in materials science and the implementation of these technologies in end-to-end bioprocesses.

Amyloidosis Cutis Dyschromica in a 16-Year-Old Filipino Girl: A Case Report.

Amyloidosis cutis dyschromica is a rare variant of primary cutaneous amyloidosis characterized by hyper- and hypopigmented macules. In this paper, we reported a case of a 16-year-old Filipino girl with hyper- and hypopigmented to depigmented macules on the upper and lower extremities, which started when she was 9 years of age.

A case of anti-BP230 antibody-positive dyshidrosiform bullous pemphigoid secondary to dipeptidyl peptidase-4 inhibitor in a 65-year-old Filipino female

@#<p style="text-align: justify;"><strong>INTRODUCTION:</strong> Bullous pemphigoid (BP) is a chronic, relapsing autoimmune blistering disorder commonly found in adults older than 60 years of age. It is mediated by autoantibodies directed against the hemidesmosomal proteins BP180 and BP230, which trigger an inflammatory cascade leading to blister formation. BP may present with pruritus, followed by an erythematous plaque or urticaria, and subsequently by bullae formation with or without mucosal involvement. It develops sporadically but can also be triggered by ultraviolet light exposure, radiation therapy, and medications such as dipeptidyl peptidase-4 inhibitor (DPP4i). Since 2006, the increasing use of DPP4i (also known as gliptins) for their good safety profi le in treating Type II Diabetes Mellitus has led to a further increase in the incidence of bullous pemphigoid.</p><p style="text-align: justify;"><strong>CASE REPORT:</strong> This is a case of a 65-year-old hypertensive and diabetic elderly Filipino female presenting DPP4i (linagliptin)-induced bullous pemphigoid with an atypical dyshidrosiform pattern, negative direct immunofluorescence (DIF), and Enzyme-linked immunosorbent assay (ELISA) that is negative for anti-BP180 antibodies but positive for anti-BP230 antibodies.</p><p style="text-align: justify;"><strong>CONCLUSION:</strong> The increasing use of DPP4i for diabetes mellitus for its good safety profile may be an essential contributing factor to the increasing incidence of BP in elderly hypertensive and diabetic patients with a simultaneous increasing incidence of atypical BP presentations such as the dyshidrosiform variant. Inability to recognize these factors carries significant therapeutic implications, including prolonged multidrug immunosuppression and increased patient morbidity and mortality.</p><p style="text-align: justify;"><strong>KEYWORDS:</strong> Bullous pemphigoid, gliptin, ELISA</p>

Childhood bullous pemphigoid: A case report

Introduction@#Bullous pemphigoid (BP) is an acquired autoimmune subepidermal bullous disease characterized by linear depo- sition of IgG and C3 along the basement membrane. It rarely occurs in childhood, especially in adolescence, with only 14 cases identified in literature. Treatment of choice is systemic corticosteroids but other treatment options such as anti-inflammatory antibacterials and methotrexate are available.@*Case report@#A 16-year-old Filipino girl presented with a three-month history of generalized vesicles and bullae. Nikolsky and Asboe-Hansen signs were negative. Histopathology and direct immunofluorescence were consistent with BP. ELISA to BP180 au- toantibody levels was elevated at 135 IU (normal <9 IU). Complete blood count showed leukocytosis with increase in neutrophils. Chest x-ray revealed pulmonary tuberculosis. The patient was given quadruple anti-Koch’s medication (pyrazinamide, rifampi- cin, ethambutol, isoniazid), prednisone, oral erythromycin and topical clobetasol propionate. Complete remission was attained at 10 months and is sustained at the time of writing.@*Conclusion@#To establish a definitive diagnosis and appropriate management, BP requires clinical, histopathologic, and immuno- logical correlation. Childhood BP has good prognosis and rapid treatment response, with rare relapses.

Development of an automated platform for the optimal production of glycoconjugate vaccines expressed in Escherichia coli.

Protein Glycan Coupling Technology (PGCT) uses purposely modified bacterial cells to produce recombinant glycoconjugate vaccines. This vaccine platform holds great potential in this context, namely due to its modular nature, the simplified production process in comparison to traditional chemical conjugation methods, and its amenability to scaled-up operations. As a result, a considerable reduction in production time and cost is expected, making PGCT-made vaccines a suitable vaccine technology for low-middle income countries, where vaccine coverage remains predominantly low and inconsistent. This work aims to develop an integrated whole-process automated platform for the screening of PGCT-made glycoconjugate vaccine candidates. The successful translation of a bench scale process for glycoconjugate production to a microscale automated setting was achieved. This was integrated with a numerical computational software that allowed hands-free operation and a platform adaptable to biological variation over the course of a production process. Platform robustness was proven with both technical and biological replicates and subsequently the platform was used to screen for the most favourable conditions for production of a pneumococcal serotype 4 vaccine candidate. This work establishes an effective automated platform that enabled the identification of the most suitable E. coli strain and genetic constructs to be used in ongoing early phase research and be further brought into preclinical trials.

lgA pemphigus, intraepidermal neutrophillic type in an 8-year old Filipino female: A case report

INTRODUCTION@#lgA pemphigus is a rare, chronic, relapsing, benign group of autoimmune intraepidermal blistering dermatosis with an unknown etiology. It is characterized by significantly pruritic, vesiculopustular lesions that occur mainly on the trunk and proximal extremities. Histopathologic and immunofluorescence studies show intraepidermal blisters and deposition of immunoglobulin A in the intercellular spaces of the epidermis, respectively.@*CASE REPORT@#To our knowledge, we present the first reported pediatric case of lgA pemphigus, intraepidermal neutrophilic type, in an 8-year old Filipino female with a 2-year history of generalized papules and flaccid pustules, some forming an annular pattern. Diagnosis was confirmed by histopathology and direct immunofluorescence. Enzyme-linked immunosorbent assay for Desmoglein 1 was negative. Complete clearance of lesions was achieved with dapsone, colchicine and prednisone.

A case report on alopecia areata incognita in a 19 year old Filipino female

INTRODUCTION@#Alopecia areata incognita is a rare form of alopecia areata which was first reported in 1987. The prevalence of this disease is unknown but it is more common in women. The usual presentation of alopecia areata incognita is acute, diffuse hair thinning. In most cases, it lacks the typical alopetic patches seen in alopecia areata. It may resemble telogen effluvium and androgenetic alopecia. The prognosis of this disease is favorable and recovery is rapid and spontaneous. Case: A 19- year-old Filipino female presents with a two-month history of alopecia areata incognita. She initially had a solitary round patch of hair loss on the scalp with proximally tapered hair, rapidly evolving into diffuse hair thinning. CBC, TFTS, FBS, HBA 1 c, ANA and VDRL were unremarkable. Histopathology demonstrated dense peribulbar lymphocytic infiltrate, miniaturized hair and increased catagen hair consistent with alopecia areata. There was gradual hair growth after treatment with minoxidil 5% lotion and topical betamethasone dipropionate 0.05% lotion.

Prevalence of Mucosal and Cutaneous disorders among HIV/AIDS adult Filipino patients 18-60 years old seen in a tertiary hospital in Makati City

Background@#With the recent rise in number of HIV/AIDS patients in the Philippines, knowledge of the most common mucosal and cutaneous findings among HIV/AIDS patients can be a valuable tool of assessment.@*Objectives@#To determine the different mucosal and cutaneous disease findings of HIV/AIDS patients; evaluate their frequency and association with the latest CD4 cell counts, and to determine patients’ demographic and medical profiles.@*Methods@#This is a cross-sectional study done at a tertiary hospital in Makati city from January 2017 to September 2018. Walk-in patients or those referred by Infectious Disease specialists were evaluated using a standardized history and physical examina- tion form. Latest CD4 counts were also obtained.@*Results@#A total of 93 patients were enrolled. Majority were males (98%), with a mean age of 32 +/- 7.08, employed (64%), and on HAART (87%). A large part of the group (45%) has severe immunosuppression (CD4 counts <200/mm3). The most common manifes- tations were the following: non-infective, fungal, and drug-related dermatoses, with the most common dermatoses being seb- orrheic dermatitis, xerosis, pruritic papular eruptions (PPE), superficial fungal infections, drug hypersensitivity reactions, and syphilis. PPE was noted to be significantly associated with low CD4 counts.@*Conclusion@#Due to small population size, significant associations between the other dermatoses with their CD4 counts were not seen except for PPE, which was significantly associated with CD4 counts <200/mm3. Nevertheless, a strong suspicion for any underlying HIV//AIDS infection is still warranted in the presence of these dermatoses.